creating a transparent window

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C++

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Want to create an application which will create a transparent window.
Thanks for help

Posted 26-Feb-10 1:37am

rupa_patil

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Eugen Podsypalnikov · Accepted Answer · 2010-02-26T02:00:00

There are two steps:

C++

// Set WS_EX_LAYERED on this window 
SetWindowLong(hwnd, GWL_EXSTYLE,
        GetWindowLong(hwnd, GWL_EXSTYLE) | WS_EX_LAYERED);
// Make this window 70% alpha
SetLayeredWindowAttributes(hwnd, 0, (255 * 70) / 100, LWA_ALPHA);

Here is only one variable hwnd - handle of a window :)

Layered windows[^]